20602425

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 35676288

約数和(自身を除く): 15073863

約数列:

[1, 3, 5, 15, 25, 53, 71, 73, 75, 159, 213, 219, 265, 355, 365, 795, 1065, 1095, 1325, 1775, 1825, 3763, 3869, 3975, 5183, 5325, 5475, 11289, 11607, 15549, 18815, 19345, 25915, 56445, 58035, 77745, 94075, 96725, 129575, 274699, 282225, 290175, 388725, 824097, 1373495, 4120485, 6867475, 20602425]

約数ペア:

[(1, 20602425), (3, 6867475), (5, 4120485), (15, 1373495), (25, 824097), (53, 388725), (71, 290175), (73, 282225), (75, 274699), (159, 129575), (213, 96725), (219, 94075), (265, 77745), (355, 58035), (365, 56445), (795, 25915), (1065, 19345), (1095, 18815), (1325, 15549), (1775, 11607), (1825, 11289), (3763, 5475), (3869, 5325), (3975, 5183)]